a cluster of abnormal cells growing in the brain
a collection of cells that multiply uncontrollably within or around the brain
a discrete mass within the brain
a disease in which cells grow uncontrollably in the brain
a group of abnormal cells that grows in or around the brain
a group or clump of abnormally growing cells that can be found in or on the brain
a growth in the brain tissue, the membranes or blood vessels
a growth of abnormal cells in the brain
a mass created by an abnormal and uncontrolled
a mass located within the skull
a mass of abnormal cells growing in the brain
a mass of abnormally growing cells in the brain or skull
a mass of cells growing unnecessarily or abnormally in the brain
a mass of undesirable normal or abnormal cells that grows in the brain
a mass or growth of abnormal cells in your brain
a more general term and includes benign as well as malignant tumors
an abnormal mass of cells growing in or on the brain
an abnormal mass of tissue in which cells grow and multiply uncontrollably, seemingly unchecked by the mechanisms that control normal cells
a noncancerous (benign) or cancerous
a space-occupying mass or volume that arises within the brain
An abnormal growth of tissue in the brain.
A benign or malignant growth in the brain. Primary brain tumors arise in brain tissue. Secondary brain tumors are cancers that have spread to the brain tissue (metastasized) from elsewhere in the body. Brain tumors can and do occur at any age. See the entire definition of Brain tumor
The growth of abnormal cells in the tissues of the brain. Brain tumors can be benign (non-cancerous) or malignant (cancerous).
astrocytoma: Astrocytomas are tumors that start in brain cells called astrocytes. There are different kinds of astrocytomas, which are defined by how the cancer cells look under a microscope. ependymoma: Ependymal tumors are tumors that begin in the ependyma, the cells that line the passageways in the brain where special fluid that protects the brain and spinal cord (called cerebrospinal fluid) is made and stored. There are different kinds of ependymal tumors, which are defined by how the cells look under a microscope. glioblastoma: Glioblastoma multiformes are tumors that grow very quickly and have cells that look very different from normal cells. Glioblastoma multiforme is also called grade IV astrocytoma. medulloblastoma: Medulloblastomas are brain tumors that begin in the lower part of the brain. They are almost always found in children or young adults. This type of cancer may spread from the brain to the spine.
A brain tumor is any intracranial tumor created by abnormal and uncontrolled cell division, normally either found in the brain itself (neurons, glial cells (astrocytes, oligodendrocytes, ependymal cells), lymphatic tissue, blood vessels), in the cranial nerves (myelin-producing Schwann cells), in the brain envelopes (meninges), skull, pituitary and pineal gland, or spread from cancers primarily located in other organs (metastatic tumors). Primary (true) brain tumors are commonly located in the posterior cranial fossa in children and in the anterior two-thirds of the cerebral hemispheres in adults, although they can affect any part of the brain.